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/*
* Simple program to grab images from VDR Recording
*
* Copyright(c) 2005-2010 Andreas Brachold
*
* This code is distributed under the terms and conditions of the
* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <sstream>
#include <vector>
#include <algorithm>
#include "tools.h"
#include "ffm.h"
#include "gop.h"
static const char *VERSION = "0.2.0";
void help(int argc, char *argv[])
{
std::cerr << "Usage: " << argv[0] << " (" << VERSION << ")" << std::endl;
std::cerr << " -r recordings : VDR recording folder" << std::endl;
std::cerr << " -f frame : wanted frame (resolution at PAL - 1/25s)" << std::endl;
std::cerr << " -o directory : output folder" << std::endl;
std::cerr << " -t directory : temporary folder" << std::endl;
std::cerr << " -x 160 : scaled width of output image" << std::endl;
std::cerr << " -y 120 : scaled height of output image" << std::endl;
std::cerr << " -e : exact frame grab, instead of duplicate frame" << std::endl;
std::cerr << " -s 500 : frame range, started at wanted frame (e.g 500 : 20s)" << std::endl;
std::cerr << " -i 25 : space beetween frames at selected range (resolution at PAL - 1/25s)" << std::endl;
std::cerr << " -c 5 : number of extracted frames of an recording or within selected range" << std::endl;
#ifdef DEBUG
std::cerr << " -g gobfile : reread demuxed gobfile" << std::endl;
#endif
std::cerr << std::endl << std::endl;
}
int main(int argc, char *argv[])
{
int width = -1;
int height = -1;
bool exact = false;
std::string szGOP, szFolder, szOutPath, szTempPath, s;
if(-1 != option(argc, argv, 'x', true, s))
{
width =((atoi(s.c_str()) >> 1) << 1); // Only /2
}
if(-1 != option(argc, argv, 'y', true, s))
{
height =((atoi(s.c_str()) >> 1) << 1);
}
if(-1 != option(argc, argv, 'e', false, s))
{
exact = true;
}
szOutPath = (".");
option(argc, argv, 'o', true, szOutPath);
szTempPath = szOutPath;
option(argc, argv, 't', true, szTempPath);
std::vector < int >nFrame;
int n = 0;
std::string f;
while(-1 !=(n = option(argc, argv, 'f', true, f, n))) {
int frame = atoi(f.c_str());
if(frame < 0) {
std::cerr << "ignore negative frame" << std::endl << std::endl;
} else {
nFrame.push_back(frame);
}
}
if(!nFrame.empty()) {
std::sort(nFrame.begin(), nFrame.end());
}
if(-1 == option(argc, argv, 'r', true, szFolder)) {
std::cerr << "missing vdr recording folder" << std::endl << std::endl;
help(argc, argv);
return 1;
}
static const char* files[] = { "index.vdr", "index" };
struct stat64 ds;
std::string szIndex;
int nIndexVersion = -1;
for(unsigned int l = 0; l < 2; ++l) {
std::stringstream ss;
ss << szFolder;
if('/' != *szFolder.rbegin())
ss << '/';
ss << files[l];
ss << std::ends;
szIndex = ss.str();
if(!stat64(szIndex.c_str(), &ds)) {
nIndexVersion = l;
break;
}
}
if(-1 == nIndexVersion) {
std::cerr << "Can't find index file at " << szFolder << std::endl;
return 1;
}
int nTotalFrames = (ds.st_size / 8);
if(nTotalFrames <= 0) {
std::cerr << "Empty index file : " << szIndex << std::endl;
return 1;
}
if(-1 != option(argc, argv, 's', true, s)) {
int range = atoi(s.c_str());
if(range <= 0) {
std::cerr << "none or negative frame range" << std::endl << std::endl;
return 1;
}
int inter = 25;
if(-1 != option(argc, argv, 'i', true, s)) {
inter = atoi(s.c_str());
if(inter <= 0) {
std::cerr << "none or negative frame space" << std::endl << std::endl;
return 1;
}
}
if(-1 != option(argc, argv, 'c', true, s)) {
int count = atoi(s.c_str());
if(count <= 0) {
std::cerr << "none or negative frame count" << std::endl << std::endl;
return 1;
}
inter = range / count;
if(inter<=0)
{
std::cerr << "count bigger then selected frame range, limit interval to 1" << std::endl << std::endl;
inter = 1;
}
}
int nLastFrame = 0;
if(!nFrame.empty())
nLastFrame = *nFrame.rbegin();
int begin = nLastFrame;
int end = nLastFrame + range;
if(end > nTotalFrames) {
end = nTotalFrames;
std::cerr << "wanted end frame from selected range, bigger then available frames. Limit end frame to " << end << std::endl << std::endl;
}
for(int i = begin; i < end; i += inter) {
nFrame.push_back(i);
}
} else {
if(-1 != option(argc, argv, 'c', true, s)) {
int count = atoi(s.c_str());
if(count <= 0) {
std::cerr << "none or negative frame count" << std::endl << std::endl;
return 1;
}
int nLastFrame = 0;
if(!nFrame.empty())
nLastFrame = *nFrame.rbegin();
int begin = nLastFrame;
int inter = (nTotalFrames - nLastFrame) / count;
if(inter<=0)
{
std::cerr << "count bigger then frame selected range, limit interval to 1" << std::endl << std::endl;
inter = 1;
}
for(int i = begin + (inter/2); i < nTotalFrames; i += inter) {
nFrame.push_back(i);
}
}
}
if(nFrame.empty()) {
std::cerr << "none frame defined, use first frame" << std::endl << std::endl;
nFrame.push_back(0);
}
#ifdef DEBUG
std::cout << "Want Frames : ";
std::vector < int >::const_iterator i = nFrame.begin();
std::vector < int >::const_iterator e = nFrame.end();
for(; i != e; ++i) {
std::cout << (*i) << " ";
}
std::cout << std::endl;
if(-1 != option(argc, argv, 'g', true, szGOP)) {
std::vector < int >::const_iterator i = nFrame.begin();
std::vector < int >::const_iterator e = nFrame.end();
for(; i != e; ++i)
if(!decodegop(szGOP,szOutPath,*i, width, height,exact));
return 1;
return 0; // Success
}
#endif //DEBUG
std::vector < std::pair<tFrame,tFrame> > nGOP;
if(ReadIndexFile(szIndex, nIndexVersion, nFrame, nGOP)) {
if(ReadRecordings(szFolder, nIndexVersion,
szOutPath, szTempPath,
nGOP, width, height, exact, true)) {
return 0; // Success
}
}
return 1;
}
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